<!DOCTYPE html>
<html>
<head>
    <title></title>
</head>
<body>

</body>
<script>
   var list = [];

   //list[] = 55;//NO
   
   list[0] = 55;
   list[10] = 55;
   list['name'] = '静静';

   console.log(list);
   console.log(typeof list);
   console.log(list.constructor);
   console.log(list.length);
   console.log(list[5]);

   //多维数组
   var arr = [
        [1,5,6],
        ['a','b','c'],
        [true,false,[1,6,9]]
   ];
   console.log(arr);
   console.table(arr);
</script>
</html>